diff --git a/docs/release-notes.md b/docs/release-notes.md index 8e842f0a2..8be710cfe 100644 --- a/docs/release-notes.md +++ b/docs/release-notes.md @@ -11,6 +11,7 @@ nav_order: 9 ### Features - Support partitioning disk with mounted partitions +- Support IPv6 for single-stack OpenStack ### Changes diff --git a/internal/providers/openstack/openstack.go b/internal/providers/openstack/openstack.go index 4ef352cfe..a4d0d539d 100644 --- a/internal/providers/openstack/openstack.go +++ b/internal/providers/openstack/openstack.go @@ -22,6 +22,7 @@ package openstack import ( "context" "fmt" + "net" "net/url" "os" "os/exec" @@ -44,11 +45,15 @@ const ( ) var ( - metadataServiceUrl = url.URL{ + metadataServiceUrlIPv4 = url.URL{ Scheme: "http", Host: "169.254.169.254", Path: "openstack/latest/user_data", } + metadataServiceUrlIPv6 = url.URL{ + Scheme: "http", + Path: "openstack/latest/user_data", + } ) func init() { @@ -166,14 +171,94 @@ func fetchConfigFromDevice(logger *log.Logger, ctx context.Context, path string) return os.ReadFile(filepath.Join(mnt, configDriveUserdataPath)) } +// Checks if an IP is an IPv6 address +func isIPv6Address(ip net.IP) bool { + isIPv6 := ip.To4() == nil + fmt.Printf("Verificando se o IP é IPv6: %s, resultado: %v\n", ip.String(), isIPv6) + return isIPv6 +} + +// Finds the name of an active network interface +func findNetworkInterfaceName() (string, error) { + fmt.Println("Fetching network interfaces...") + interfaces, err := net.Interfaces() + if err != nil { + return "", fmt.Errorf("error fetching network interfaces: %v", err) + } + + for _, iface := range interfaces { + fmt.Printf("Checking interface: %s\n", iface.Name) + + // Skip inactive or loopback interfaces + if iface.Flags&net.FlagUp != 1 && iface.Flags&net.FlagLoopback == 1 { + continue + } + + addrs, err := iface.Addrs() + if err != nil { + fmt.Printf("Error fetching addresses for interface %s: %v\n", iface.Name, err) + continue + } + + for _, addr := range addrs { + if ipnet, ok := addr.(*net.IPNet); ok && isIPv6Address(ipnet.IP) { + fmt.Printf("Active interface found: %s\n", iface.Name) + return iface.Name, nil + } + } + } + return "", fmt.Errorf("no active IPv6 network interface found") +} + +// Fetches configuration from both IPv4 and IPv6 metadata services func fetchConfigFromMetadataService(f *resource.Fetcher) ([]byte, error) { - res, err := f.FetchToBuffer(metadataServiceUrl, resource.FetchOptions{}) + var ipv4Res, ipv6Res []byte + var ipv4Err, ipv6Err error - // the metadata server exists but doesn't contain any actual metadata, - // assume that there is no config specified - if err == resource.ErrNotFound { - return nil, nil + // Attempt to fetch from IPv4 + fmt.Println("Fetching from IPv4 metadata service...") + ipv4Res, ipv4Err = f.FetchToBuffer(metadataServiceUrlIPv4, resource.FetchOptions{}) + if ipv4Err == nil { + fmt.Println("Successfully fetched configuration from IPv4.") + + // If IPv4 succeeds, attempt to fetch from IPv6 as well + fmt.Println("Fetching IPv6 address for metadata service...") + interfaceName, err := findNetworkInterfaceName() + if err != nil { + fmt.Printf("IPv6 metadata service lookup failed: %v\n", err) + return ipv4Res, fmt.Errorf("IPv6 lookup failed, returning IPv4 result") + } + + metadataServiceUrlIPv6.Host = fmt.Sprintf("fe80::a9fe:a9fe%%%s", interfaceName) + fmt.Printf("Fetching from IPv6 metadata service at %s...\n", metadataServiceUrlIPv6.String()) + ipv6Res, ipv6Err = f.FetchToBuffer(metadataServiceUrlIPv6, resource.FetchOptions{}) + + if ipv6Err != nil { + fmt.Printf("IPv6 metadata service failed: %v\n", ipv6Err) + return ipv4Res, fmt.Errorf("IPv4 succeeded, but IPv6 failed: %v", ipv6Err) + } + fmt.Println("Successfully fetched configuration from both IPv4 and IPv6.") + return append(ipv4Res, ipv6Res...), nil + } + + // If IPv4 fails, attempt to fetch from IPv6 + fmt.Printf("IPv4 metadata service failed: %v\n", ipv4Err) + fmt.Println("Trying to fetch from IPv6 metadata service...") + + interfaceName, err := findNetworkInterfaceName() + if err != nil { + fmt.Printf("IPv6 metadata service lookup failed: %v\n", err) + return nil, fmt.Errorf("both IPv4 and IPv6 lookup failed") + } + + metadataServiceUrlIPv6.Host = fmt.Sprintf("fe80::a9fe:a9fe%%%s", interfaceName) + fmt.Printf("Fetching from IPv6 metadata service at %s...\n", metadataServiceUrlIPv6.String()) + ipv6Res, ipv6Err = f.FetchToBuffer(metadataServiceUrlIPv6, resource.FetchOptions{}) + if ipv6Err != nil { + fmt.Printf("IPv6 metadata service failed: %v\n", ipv6Err) + return nil, fmt.Errorf("both IPv4 and IPv6 services failed") } - return res, err + fmt.Println("Successfully fetched configuration from IPv6 metadata service.") + return ipv6Res, fmt.Errorf("IPv4 failed, returning IPv6 result") }